EGR cooler with integrated support structure

Abstract

The EGR cooler with the integrated support structure comprises a pipe shell, a water outlet pipe, an air inlet chamber, an air outlet chamber, a first support and an integrated structure, the air inlet chamber and the air outlet chamber are arranged at the two ends of the pipe shell respectively, a cooling core is arranged in the pipe shell, the water outlet pipe is arranged at the end, close to the air outlet chamber, of the pipe shell, and the water outlet pipe is communicated with a liquid outlet of the cooling core; the first support is arranged on the pipe shell, the integrated structure comprises a water inlet pipe and a second support, the water inlet pipe is arranged at the end, close to the air inlet chamber, of the pipe shell, one end of the water inlet pipe communicates with a liquid inlet of the cooling core, and the second support is arranged at the end, away from the cooling core, of the water inlet pipe. The EGR cooler has the advantages that the second support is arranged at the end of the water inlet pipe, the cooling liquid flow channel and the supporting support are integrated on one part and used in cooperation with the first support, circulation of cooling liquid and overall fixing and supporting can be achieved, and the EGR cooler is simple and compact in structure and capable of being suitable for the situation that the space of an engine is limited.

Description

TECHNICAL FIELD

[0001] The utility model relates to EGR cooler technical field, concretely relates to an EGR cooler with integrated support structure. BACKGROUND

[0002] EGR cooler belongs to the key part of EGR system (exhaust gas recirculation system), and its high efficient heat exchange with low temperature cooling liquid and high temperature exhaust gas realizes the effective cooling of high temperature exhaust gas.

[0003] Generally, the water inlet pipe and water outlet pipe are arranged on the EGR cooler to realize the circulation of cooling liquid, and the fixed support of the EGR cooler is realized by welding the support on the body. In some cases, the EGR cooler is limited by the overall arrangement of the engine, the installation space of the fixed support is insufficient, or the cooling liquid flow channel and the support position interfere with each other, so that the common water pipe and support structure cannot realize the installation of the EGR cooler. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides an EGR cooler with integrated support structure to solve the above problems in the prior art.

[0005] In order to realize the above purpose, the utility model provides the following technical scheme:

[0006] According to the first aspect of the utility model, an EGR cooler with integrated support structure comprises a tube shell, a water outlet pipe, an air inlet chamber, an air outlet chamber, a first support and an integrated structure, the air inlet chamber and the air outlet chamber are arranged at two ends of the tube shell respectively, a cooling core is arranged in the tube shell, the water outlet pipe is arranged at one end of the tube shell close to the air outlet chamber, and the water outlet pipe is communicated with the liquid outlet of the cooling core.

[0007] The first support is arranged on the tube shell, the integrated structure comprises a water inlet pipe and a second support, the water inlet pipe is arranged at one end of the tube shell close to the air inlet chamber, one end of the water inlet pipe is communicated with the liquid inlet of the cooling core, and the second support is arranged at one end of the water inlet pipe away from the cooling core.

[0008] Further, the second support and the water inlet pipe are an integrated structure.

[0009] Further, the second support is a flange.

[0010] Further, the water inlet pipe is welded with the tube shell.

[0011] Further, it further comprises a reinforcing plate, the reinforcing plate is provided with a through hole, the reinforcing plate is arranged at the connecting position of the water inlet pipe and the tube shell, and the reinforcing plate is welded with the tube shell and the water inlet pipe respectively.

[0012] Further, a protrusion is arranged on the end of the water inlet pipe connected with the shell, and the protrusion is inserted into the reinforcing plate and the shell.

[0013] Further, the through hole is a rectangular hole, and the protrusion is a rectangular protrusion, and the protrusion is inserted into the rectangular hole.

[0014] Further, the flow channel in the water inlet pipe adopts a variable-diameter structure, the end of the water inlet pipe close to the shell is a rectangular hole, and the end of the water inlet pipe away from the shell is a circular hole.

[0015] Further, the first support is welded with the shell, and the first support and the second support are arranged on the upper side and the lower side of the shell respectively.

[0016] Further, the wall thickness of the water inlet pipe is greater than 2.5 mm.

[0017] The EGR cooler has the following advantages: the second support is arranged at the end of the water inlet pipe, the cooling liquid flow channel and the supporting support are integrated on one part, and the first support is used, so that the circulation of the cooling liquid and the overall fixed support are realized, compared with the commonly used pipeline and support structure on the EGR cooler, the EGR cooler has simple and compact structure, and is suitable for the case that the engine space is limited. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative labor.

[0019] The structures, proportions, sizes and the like shown in the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the limiting conditions of the embodiments of the present application, and therefore do not have technical substantial significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0020] Figure 1 A whole structure schematic view of an EGR cooler with an integrated support structure is provided for some embodiments of the present application.

[0021] Figure 2 A structure schematic view of an integrated support of an EGR cooler with an integrated support structure is provided for some embodiments of the present application.

[0022] Figure 3 This is a cross-sectional view of an integrated structure of an EGR cooler with an integral support structure, provided for some embodiments of this utility model.

[0023] Figure 4 This is a schematic diagram of the connection between the integrated support and the shell of an EGR cooler with an integrated support structure, provided for some embodiments of this utility model.

[0024] Figure 5 This is a schematic diagram of the reinforcing plate of an EGR cooler with an integrated support structure, provided for some embodiments of this utility model.

[0025] In the diagram: 1. Pipe shell, 2. Reinforcing plate, 3. Integrated structure, 4. Water outlet pipe, 5. First support, 6. Air inlet chamber, 7. Air outlet chamber, 8. Water inlet pipe, 9. Second support, 10. Protruding edge, 11. Through hole. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example 1

[0028] like Figures 1 to 5 As shown, an EGR cooler with an integrated support structure in the first aspect embodiment of the present invention includes a shell 1, a water outlet pipe 4, an air inlet chamber 6, an air outlet chamber 7, a first support 5, and an integrated structure 3. The air inlet chamber 6 and the air outlet chamber 7 are respectively disposed at both ends of the shell 1. A cooling core is provided inside the shell 1. The water outlet pipe 4 is welded to one end of the shell 1 near the air outlet chamber 7, and the water outlet pipe 4 is connected to the liquid outlet of the cooling core.

[0029] The first support 5 is mounted on the shell 1. The integrated structure 3 includes a water inlet pipe 8 and a second support 9. The water inlet pipe 8 is mounted on one end of the shell 1 near the air inlet chamber 6, and one end of the water inlet pipe 8 is connected to the liquid inlet of the cooled core. The second support 9 is mounted on the end of the water inlet pipe 8 away from the cooled core.

[0030] In this embodiment, it should be noted that the second bracket 9 and the water inlet pipe 8 are an integral structure. The second bracket 9 is a flange, and the water inlet pipe 8 is welded to the pipe shell 1, which facilitates processing and manufacturing.

[0031] The technical effect achieved by the embodiment is that the second support 9 is arranged at the end of the water inlet pipe 8, the cooling liquid flow channel and the supporting support are integrated on one part, and the circulation of the cooling liquid and the overall fixed support can be realized by cooperating with the first support 5. Compared with the pipeline and support structure commonly used on the EGR cooler, the EGR cooler is simple and compact, and is suitable for the case that the engine space is limited.

[0032] Embodiment 2

[0033] As shown in Figures 1 to 5 , the embodiment provides another EGR cooler with an integrated support structure, which includes all the contents of embodiment 1, and only the different parts are described below.

[0034] In this embodiment, it also includes a reinforcing plate 2, as shown in Figure 4 and Figure 5 , the reinforcing plate 2 is provided with a through hole 11, and the reinforcing plate 2 is arranged at the connection between the water inlet pipe 8 and the pipe shell 1. The reinforcing plate 2 is welded with the pipe shell 1 and the water inlet pipe 8 respectively.

[0035] In this embodiment, it should be noted that, as shown in Figure 2 , Figure 3 and Figure 4 , the end of the water inlet pipe 8 connected with the pipe shell 1 is provided with a convex edge 10, and the convex edge 10 is inserted into the reinforcing plate 2 and the pipe shell 1.

[0036] Further, the through hole 11 is a rectangular hole, and the convex edge 10 is a rectangle. The convex edge 10 is inserted into the rectangular hole. The rectangular hole is used for positioning and installation, which can avoid the integrated structure 3 from being twisted during use, and improve the stability of the integrated structure 3 as a supporting part.

[0037] The flow channel in the water inlet pipe 8 adopts a variable diameter structure. The end of the water inlet pipe 8 close to the pipe shell 1 is a rectangular hole, and the end of the water inlet pipe 8 away from the pipe shell 1 is a circular hole. The rectangular hole and the circular hole are smoothly connected, forming a cooling liquid flow channel. The flow channel has a large cross section and a smooth internal transition, and the cooling liquid pressure loss is low.

[0038] The technical effect achieved by the embodiment is that by arranging the reinforcing plate 2, the welding surface strength of the pipe shell 1 can be improved, and the risk of tearing of the pipe shell 1 can be reduced, which is more safe and reliable.

[0039] Embodiment 3

[0040] As shown in Figures 1 to 5 , the embodiment provides another EGR cooler with an integrated support structure, which includes all the contents of embodiment 2, and only the different parts are described below.

[0041] In the embodiment, the first support 5 is welded with the shell 1, and the first support 5 and the second support 9 are respectively located on the upper and lower sides of the shell 1, and specifically, the first support 5 and the second support 9 are diagonally distributed, which can effectively improve the stability after connection and fixation.

[0042] In the embodiment, it is to be noted that the wall thickness of the water inlet pipe 8 is greater than 2.5 mm, and specifically, the water inlet pipe 8 is made of a casting with a wall thickness not less than 2.5 mm, and has higher structural strength.

[0043] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model, all belong to the scope of protection required by the utility model.

[0044] The terms such as "upper", "lower", "left", "right", "intermediate" and the like cited in the specification are only for the convenience of clear description, and are not used to limit the scope of the utility model, and the change or adjustment of the relative relationship is also regarded as the scope of the utility model without substantial change of the technical content.

Claims

1. An EGR cooler having an integrated support structure, characterized by, The application relates to a cooling device, which comprises a tube shell (1), a water outlet pipe (4), an air inlet chamber (6), an air outlet chamber (7), a first support (5) and an integrated structure (3), the air inlet chamber (6) and the air outlet chamber (7) are arranged at two ends of the tube shell (1) respectively, a cooling core is arranged in the tube shell (1), the water outlet pipe (4) is arranged at one end of the tube shell (1) close to the air outlet chamber (7), and the water outlet pipe (4) is communicated with a liquid outlet of the cooling core; the first support (5) is arranged on the tube shell (1), the integrated structure (3) comprises a water inlet pipe (8) and a second support (9), the water inlet pipe (8) is arranged at one end of the tube shell (1) close to the air inlet chamber (6), one end of the water inlet pipe (8) is communicated with a liquid inlet of the cooling core, and the second support (9) is arranged at one end of the water inlet pipe (8) away from the cooling core.

2. An EGR cooler having an integral support structure according to claim 1, wherein, The second support (9) and the water inlet pipe (8) are an integrated structure.

3. An EGR cooler having an integral support structure according to claim 2, wherein, The second support (9) is a flange.

4. An EGR cooler having an integral support structure according to claim 1, wherein, The water inlet pipe (8) is welded with the tube shell (1).

5. An EGR cooler having an integral support structure according to claim 4, wherein, The application further relates to a reinforcing plate (2), the reinforcing plate (2) is provided with a through hole (11), the reinforcing plate (2) is arranged at a connecting position of the water inlet pipe (8) and the tube shell (1), and the reinforcing plate (2) is welded with the tube shell (1) and the water inlet pipe (8) respectively.

6. An EGR cooler having an integral support structure according to claim 5, wherein, One end of the water inlet pipe (8) connected with the tube shell (1) is provided with a convex edge (10), and the convex edge (10) is inserted into the reinforcing plate (2) and the tube shell (1).

7. An EGR cooler having an integral support structure according to claim 6, wherein, The through hole (11) is a rectangular hole, the convex edge (10) is a rectangle, and the convex edge (10) is inserted into the rectangular hole.

8. An EGR cooler having an integral support structure according to claim 7, wherein, A flow channel in the water inlet pipe (8) adopts a variable-diameter structure, one end of the water inlet pipe (8) close to the tube shell (1) is a rectangular hole, and one end of the water inlet pipe (8) away from the tube shell (1) is a circular hole.

9. An EGR cooler having an integral support structure according to claim 1, wherein, The first support (5) is welded with the tube shell (1), and the first support (5) and the second support (9) are arranged on upper and lower sides of the tube shell (1) respectively.

10. An EGR cooler having an integral support structure according to claim 1, wherein, The wall thickness of the water inlet pipe (8) is greater than 2.5 mm.

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